/* Copyright (c) 2020 XEPIC Corporation Limited */
/*
 * Copyright (c) 2009-2015 Stephen Williams (steve@icarus.com)
 *
 *    This source code is free software; you can redistribute it
 *    and/or modify it in source code form under the terms of the GNU
 *    General Public License as published by the Free Software
 *    Foundation; either version 2 of the License, or (at your option)
 *    any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 * USA.
 */

#include <stdio.h>
#include <string.h>

#include "version_base.h"
#include "version_tag.h"

static void run_string(const char* txt) {
  const char* cp = txt;
  while (*cp) {
    if (cp[0] == '%' && cp[1] != 0) {
      switch (cp[1]) {
        case 'M':
          fprintf(stdout, "%d", VERSION_MAJOR);
          break;
        case 'n':
          fprintf(stdout, "%d", VERSION_MINOR);
          break;
        case 'E':
          fprintf(stdout, "%s", VERSION_EXTRA);
          break;
        case 'T':
          fprintf(stdout, "%s", VERSION_TAG);
          break;
        case '%':
          putc('%', stdout);
          break;
        default:
          break;
      }
      cp += 2;

    } else if (cp[0] == '\\' && cp[1] != 0) {
      switch (cp[1]) {
        case 'n':
          putc('\n', stdout);
          break;
        default:
          putc(cp[1], stdout);
          break;
      }
      cp += 2;

    } else {
      putc(cp[0], stdout);
      cp += 1;
    }
  }
}

int main(int argc, char* argv[]) {
  int idx;

  if (argc == 1) {
    printf("%s\n", VERSION);
    return 0;
  }

  run_string(argv[1]);
  for (idx = 2; idx < argc; idx += 1) {
    printf(" ");
    run_string(argv[idx]);
  }

  return 0;
}
